B Benest New Member Joined Dec 21, 2019 Messages 1 Reaction score 0 Truck Year 2014 Dec 21, 2019 #1 I have a problem with the DEF, i just add more DEF because i noticed level down and after this a message in the screen "DEF problem see the dealer" and after that another "motor not run after 51 miles"
I have a problem with the DEF, i just add more DEF because i noticed level down and after this a message in the screen "DEF problem see the dealer" and after that another "motor not run after 51 miles"
W Will_CathVT Member Joined Jul 9, 2019 Messages 77 Reaction score 25 Truck Year 2016 Dec 21, 2019 #2 Check your owners manual, the DEF system will warn if the level is too low.